Find the best open-source alternatives

A deterministic, skills-based browser agent that automates web interactions using predefined action recipes for popular sites.

Python library for multilinear algebra operations and tensor factorizations with support for dense and sparse tensors.

An open-source, privacy-first experience management platform for creating and deploying in-app, website, link, and email surveys.

OWASP's software composition analysis tool that identifies project dependencies and checks for known vulnerabilities.

Grunt plugin to optimize PNG and JPG images using the reSmush.it web service.

An open-source media distribution framework for publishing public or subscription-based content, built on Django and Wagtail.

A free open-source Ruby on Rails scoring server for cyber Capture the Flag competitions with dynamic hints and web-based challenge management.

A local-first API client and HTTP interceptor for building, testing, and mocking APIs directly in your browser or desktop.

A blazingly fast, modern web frontend for browsing bare Git repositories, built in Rust.

A Node.js server and web client for creating synchronized video-watching channels with integrated chat.

An open-source Node.js implementation of the ArcGIS GeoServices REST API specification for serving geographic data.

A self-hosted server for sending push notifications via Matrix, compatible with Gotify's API.

A library for building high-performance custom human pose estimation applications with real-time inference and flexible model development.

An online mind mapping editor with native-like interaction, cloud sync, and instant sharing capabilities.

A modular, low-resource network honeypot that mimics services to detect breaches and alert on attacker interactions.

A localization and translation tool for Delphi applications that replaces the standard Delphi Translation Manager.

A tiny, high-performance JavaScript library for color parsing, manipulation, and conversion with a plugin-based architecture.

Build interactive web visualizations with Python without HTML/JS knowledge, inspired by R's Shiny package.

A private, self-hosted Terraform/OpenTofu registry for modules and providers with a web dashboard and RBAC.

A masterless, cloud-scale, fault-tolerant distributed computation system for batch and stream processing written in Clojure.

A fast, lightweight terminal user interface for managing Docker and Podman containers and Compose projects.

A Clojure/ClojureScript library that automatically generates project schedules from task descriptions with constraints like resources, duration, and dependencies.

An easy-to-use immediate mode GUI library for Rust that runs on both web and native platforms.

A self-hostable, Twitter/Bluesky-like microblogging service with Markdown support, syntax highlighting, and RSS feed following.

Sento is an actor framework for Common Lisp featuring actors, agents, FSMs, and an event stream for building reactive, concurrent systems.

A Vue 3 library providing TypeScript decorators for writing Vue components as ES classes.

An open-source platform for declarative deployment of containerized web apps, on a single node or Kubernetes, with built-in auth and RBAC.

A framework for building reactive, real-time frontend UI components in Amber applications using pure Crystal.

A macOS menu bar app that displays your calendar meetings and provides quick access to join or create meetings.

An open-source, real-time infrastructure monitoring platform with per-second metrics, ML-powered anomaly detection, and zero-configuration deployment.

A free and open-source BitTorrent client written in C++/Qt, offering a fast, stable, and feature-rich alternative to other clients.

Rails integration for the Rodauth authentication framework, providing a robust, feature-rich alternative to Devise.

An open-source operating system that upgrades driver assistance systems in 300+ supported cars.

A fast, intuitive, and type-safe C++ library for enhanced enumeration support with minimal compile-time overhead.

A durable background task queue and workflow orchestration platform built on Postgres with observability and flow control.

A self-hosted music server for collectors, featuring advanced metadata handling, music videos, and flexible library management.